package xkp.lesson5;

public class StudentInfo{
	public static void main(String[] args) {
		int a = 100;
		a = 200;
		//类的内容
		
		//-128---127
		byte b1 = 22;
		//b1 = 2222;
		//系统输出
		System.out.println(b1);
		int sda1231sd1212 = 22;
		int studentAge = 100;
	}
}